IRVINE, CA - January 30, 2013 - (RealEstateRama) -- Award-winning KTGY Group, Inc., Architecture and Planning, is pleased to announce that Carmel Partners of San Francisco has begun construction on Carmel Loft House, a contemporary, new, mixed-use development spanning two city blocks adjacent to the popular Plaza del Sol, off of South Frances Street and Olson Way in the heart of downtown Sunnyvale, Calif. The sustainable, urban infill development will consist of two buildings comprised of up to four stories of residential with 133 loft-style apartment homes and more than 6,000 square feet of ground floor retail space.